Product overview
Description
The ST1L05 is a low drop linear voltage regulator, which supplies up to 1.3 A output current.
The output voltage is fixed at 1.8 V, 2.5 V, 3.3 V and it is adjustable. It is available in three different versions with different pinouts.
Thanks to BiCMOS technology, the quiescent current is controlled and maintained below 650 μA over the entire allowed junction temperature range. The ST1L05 is stable with low ESR output ceramic capacitors.
Internal protection circuitry includes thermal protection with hysteresis and overcurrent limiting.
The ST1L05 is suitable for data storage applications such as HDDs, where it can supply 3.3 V required by read channel and memory chips.
The regulator is available in the small and thin DFN6 (3x3 mm) and DFN8 (4x4 mm) packages.
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All features
- Fixed output voltage: 1.8 V, 2.5 V, 3.3 V and ADJ
- Output voltage tolerance: ± 2% at 25 °C
- Output current capability: 1.3 A
- Very low quiescent current: max. 650 μA
- Typ. dropout 0.3 V (@ IO = 1.3 A)
- Enable function for B, C and D versions
- Power Good function for B and D versions
- Stable with low ESR ceramic capacitors
- Thermal shutdown protection with hysteresis
- Overcurrent protection
- Operating junction temperature range: from 0 to 125 °C
Circuit Diagram
EDA Symbols, Footprints and 3D Models
STMicroelectronics - ST1L05
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3D models
Quality and Reliability
| Part Number | Marketing Status | Package | Grade | RoHS Compliance Grade | Material Declaration** |
|---|---|---|---|---|---|
| ST1L05APU33R | Active | DFN6 3x3 | Industrial | Ecopack2 | |
| ST1L05BPUR | Active | DFN6 3x3 | Industrial | Ecopack2 | |
| ST1L05CPU33R | Active | DFN6 3x3 | Industrial | Ecopack2 | |
| ST1L05DPUR | Active | DFN8 4x4 | Industrial | Ecopack2 | |
| ST1L05PU25R | Active | DFN6 3x3 | Industrial | Ecopack2 |
ST1L05BPUR
Package:
DFN6 3x3Material Declaration**:
(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.
Sample & Buy
| Part Number | Marketing Status | Budgetary Price (US$)*/Qty | Order from ST | Order from distributors | Package | Packing Type | RoHS | Country of Origin | ECCN (US) | ECCN (EU) | Operating temperature (°C) | Operating Temperature (°C) (max) | Grade | Output Voltage (V) (nom) | Output Tolerance (typ) | Output Current (A) (nom) | ||
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| ST1L05BPUR | | | distributors No availability of distributors reported, please contact our sales office |
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| ST1L05CPU33R | | | distributors No availability of distributors reported, please contact our sales office |
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| ST1L05APU33R | | | distributors No availability of distributors reported, please contact our sales office |
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| ST1L05DPUR | | | distributors No availability of distributors reported, please contact our sales office |
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| ST1L05PU25R | | | distributors No availability of distributors reported, please contact our sales office |
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ST1L05BPUR Active
ST1L05CPU33R Active
ST1L05APU33R Active
ST1L05DPUR Active
ST1L05PU25R Active
(*) Suggested Resale Price (USD) per defined quantity for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors